Multiquip manual ST-3050D Submersible PUMP/CTRL. BOX Installation CB200, Control BOX Mounting

ST-3050D SUBMERSIBLE PUMP/CTRL. BOX — INSTALLATION (CB200)

DANGER:

To place the ST-3050D submersible pump into operation requires the use of a control box.The control box contains the necessary electronics (electronic overload module, float switch connections and 230/460 voltage transformer) to operate the pump. Remember this control box contains hazardous voltages. Disconnect all sources of power before installing or servicing. There exists the possibility of electrocution, electric shock or burn, which can cause severe bodily harm or even death!

CAUTION:

This control box should only be installed or serviced by a licensed electrician or qualified personnel.

CONTROL BOX MOUNTING

Mountthecontrolboxinanuprightverticalposition.Makesure the control box is securely fastened to a flat surface, that is free of dust, dirt, moisture or any elements that may contaminate or erode the electronic components of the control box.

3-Phase Power Installation (Input)

The ST-3050D submersible pump requires 230/460 3-phase powerfornormaloperation.Thepumpisshippedfromthefactory in the 230 VAC configuration.To change the voltage setting from

230VAC to 460 VAC refer to the transformer wiring section on page 16.

If you cannot determine what your pump's power requirements are, look at the vendor supplied identification name tag attached to the pump or please contact Multiquip's Service/Technical Assistance department.

CAUTION:

Applying incorrect power (voltage phasing) to the submersible pump can cause severe damage to the pump. Please make sure that the correct voltage and phase are transferred to the pump at all times.

POWER CORD REQUIREMENTS

When routing the three phase power via a power cord to the control box,ALWAYSuse the correct wire size.Please reference Table 3 below (Cord Length/Wire Size) to determine the correct wiresize.Incorrectwire sizecanadverselyaffecttheperformance of the pump.

TABLE 3. CORD LENGTH AND WIRE SIZES

AMPS	50 FT.	100 FT.	150 FT.
6	16 AWG	16 AWG	14 AWG
8	16 AWG	14 AWG	12 AWG
10	16 AWG	14 AWG	12 AWG
12	14 AWG	14 AWG	12 AWG
14	14 AWG	12 AWG	10 AWG
16	12 AWG	12 AWG	10 AWG

FLOAT SWITCH INSTALLATION (CB200)

1.Remove the float switch input connector housing, then route the float switch wires through the cable gland on the control box. Attach the wires to the float switch terminal block as indicated by Table 2. Reference Figures 7 and 8.

TABLE 4. FLOAT SWITCH CONNECTIONSS

FLOAT SWITCH	FLOAT SWITCH TERMINAL
	BLOCK NUMBER
START	TERMINALS 1 AND 2
STOP	TERMINALS 3 AND 4

2.Tighten the connector housing to ensure a tight fit between the cord and the connector body.This will prevent the cable from pulling out of the terminal block and also prevent moisture from entering the control box..

3.Determine the length of the float switch wires, then secure float switch wires to pump discharge hose.

ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 13